PRRT2 is a presynaptic plasma membrane protein involved in neurotransmitter release. Disorders associated with PRRT2 pathogenic variants are a spectrum of clinical conditions with autosomal dominant inheritance, characterized by a paroxysmal presentation. The three main ones are self-limited infantile epilepsy, paroxysmal kinesigenic dyskinesia, and hemiplegic migraine, but other presentations have been reporte...